Lamp Replacement Checks
- When changing lamps, always clean the tanning
unit thoroughly.
- Dirty reflectors and acrylics can significantly
reduce the useful UV performance of the
lamps.
- Check the acrylic quality. Poor quality,
"cheap" acrylics, or 'yellow,
cracked,
badly degraded acrylics can block 70% or
more of the UVB radiation of the lamps
from
reaching your skin. This can make a new
lamp
appear to perform like one that has reached
end-oflife.
- Check the lamp sockets. Be sure that the
lamps are snug in the lamp sockets. Replace
any that show worn springs or loose contacts.
Poor lamp contacts can cause difficulty
in
lamp starting, shorten lamp life, cause
premature
end blackening, and possible electrical
arcing
at the lamp ends.
- Change the lamp starters regularly. Generally
most bed manufacturers recommend changing
the starters every other lamp replacement.
A worn out two dollar starter can quickly
destroy a twelve dollar lamp.
Lamp Operation
- Periodically check lamp cleanliness. Most
units have an air-cooling system for the
lamps, which ends up being a giant vacuum
cleaner for room dirt. The dirt build up
on the lamps can have a significant effect
on lamp intensity.
-
Check that the cooling system for the lamps
is operating properly. Without proper airflow,
a lamp can lose intensity. A lamp running
20 - 30 degrees too hot (or too cold) can
lose as much as 35% of it's maximum output
intensity.
- Monitor your lamp intensity. Purchase a UV
monitor and develop a history of UV readings.
Check your lamps both with and without
acrylics
so you can follow the degradation of the
acrylics. Also, periodically check the
lamp
intensity so you can monitor the depreciation
of the lamps during use. Keep in mind,
that
most meters cannot be used to compare lamps
with different spectral properties. Generally
lamps are replaced at about 30% loss from
their initial intensity. This will vary
by
lamp design